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Integer overflow in gf_hevc_read_sps_bs_internal function of media_tools/av_parsers.c:8316 #2347

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xidoo123 opened this issue Dec 11, 2022 · 0 comments
Closed
3 tasks done

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@xidoo123
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Thanks for reporting your issue. Please make sure these boxes are checked before submitting your issue - thank you!

Detailed guidelines: http://gpac.io/2013/07/16/how-to-file-a-bug-properly/

Description

Integer overflow in gf_hevc_read_sps_bs_internal function of media_tools/av_parsers.c:8316

sps->max_CU_width = (1 << (sps->log2_min_luma_coding_block_size + sps->log2_diff_max_min_luma_coding_block_size));
sps->max_CU_height = (1 << (sps->log2_min_luma_coding_block_size + sps->log2_diff_max_min_luma_coding_block_size));

Version info

MP4Box - GPAC version 2.1-DEV-rev574-g9d5bb184b-master
(c) 2000-2022 Telecom Paris distributed under LGPL v2.1+ - http://gpac.io

Please cite our work in your research:
	GPAC Filters: https://doi.org/10.1145/3339825.3394929
	GPAC: https://doi.org/10.1145/1291233.1291452

GPAC Configuration: --enable-sanitizer
Features: GPAC_CONFIG_LINUX GPAC_64_BITS GPAC_HAS_IPV6 GPAC_HAS_SSL GPAC_HAS_SOCK_UN GPAC_MINIMAL_ODF GPAC_HAS_QJS GPAC_HAS_LINUX_DVB  GPAC_DISABLE_3D

Reproduce

compile and run

./configure --enable-sanitizer
make
./MP4Box import -add poc_int.mov

Crash reported by sanitizer

[Core] exp-golomb read failed, not enough bits in bitstream !
[HEVC] Warning: Error parsing NAL unit
media_tools/av_parsers.c:8316:25: runtime error: shift exponent 146 is too large for 32-bit type 'int'

POC

poc_int.zip

Impact

Potentially causing DoS and corrupting data structure

Credit

Xdchase

@jeanlf jeanlf closed this as completed in 6bb3e4e Dec 12, 2022
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